Window-screen.



A. H. MIX. wmnow 21011111211. APPLICATION FILED MAR. 10, 1908.

Patentgd Feb. 2, 1909 isnnrs-snnm 1 5 animate flZZc izfl'oz'uardiizz Witness A. H. MD; Y

WINDOW SGREEN. APPLICATION FILED MAR. 10, 1908.

Patented Feb; 2, 1909.

SHEETS-SHEET 2.

UNITED srATEs PATENT OFFICE.

ALLEN HOWARD MIX, OE BURLINGTON, VE MONT, ssieNoR TO PORTER soREEN MANUFACTURING ooMPANY, or BURLINGTON, VERMONT, A oORPoRATIoN.

WiNDOW-SOREEN.

Specification of Letters Patent.

Patented Feb.2, ieoe.

Application filed an 10, 1908. SeriaI No. 420,264.

sliding closures; and one of the objects of. the invention is to provide spring-pressed rollers for guiding and supporting the screen and compensating'for variations to the side of the frame due to climatic changes so as to maintain contact with the screen guides irrespective of contraction or expansion of the frame. Another object of the invention is to provide a screen having opposite sets of springpressed rollers, one of which sets is retractable to permit ready removal of the screen at any time. l 7 j A still further object of the inventionis to provide guide rollers having supporting and spring-projecting means of novel construc-' tion to insure an eifectiveaction thereof, and wherein the brackets are adj ustably mounted to regulate the spring pressure andextent of projection of the rollers. i

The invention consists of the features of construction, combination and arrangement of parts hereinafter" fully described and claimed, reference beinghad to the accom-' panying drawings, in which A Figure 1 is an elevation of a window screen partly broken away and partly in section to show the spring supporting means for one of the rollers at each side thereof. Fig. 2 is a horizontal transverse section through one of the guides and one'side of the screen frame, on a line through the upper end of the roller bracket. Figs. 3 and a are vertical transverse sections on an enlarged scale showing the'construction of the screen and rollers at the opposite sides of the screen. Fig. 5 is an end elevation looking toward the side of the screen shown in Fig. 3.

Referring now more particularly to the drawings, 1 designates the frame of a screen which may be in general of ordinary construction, and 2 designates the guides for the screen arranged in practice at the opposite sides of the window frame.

Each of the side bars 3 and 4 of the screen 7 is provided with a desired number of springpressed rollers to bear and travel upon the adjacent'guide 2. As shown, the side 3 is provided'with a pair of such guiding and supporting rollers, each of which is arranged within a recess 5 formed in said side and opening through the outer edge thereof. Each roller structure comprises a vertical supporting bracket 6 embodying spaced side pieces 7 and a back wall or piece 8. The upper ends of the side pieces 7 project above the wall 8 in the form of apertured ears 9 providing supports for the journals of the A A guiding and supporting roller 10, while the lower ends of said side pieces are extended below the lower edge of the back plate and formed with hooked portions 11 to engage the crossbar of a staple 12 fixed to the botless extent.

The upper end of the bracket is adjustably connected with the inner wall of the recess jects through the opening 14, which latter is of less area than the head of the screw but of sufiicient size to permit unrestricted nward movement of the bracket, so that pivotal movement of the bracket within, determined limits is permitted toadapt the roller 10 to bear firmly against the surface of the guide 2' and to conform to irregularities therein. A substantially V-shapeol spring 16 is provided to force the bracket outward. The arms of this spring lie respectively in front and in rear of the wall 8, the rear arm bearing at its free end against the inner wall of the recess, while the free end of the outer or front arm engages a pin 17 supported by the side pieces 7 so that'the pressure of the spring will be transmitted to swing the bracket outward and force the roller 10 with the desired pressure against the guide. The bight portion of the spring embraces and engages the lower edge of the wall 8, thus maintaining the spring in proper operative relationship to the coacting parts.

The rollers at the opposite side of the frame, namely, those mounted upon the side rail 4: to engage the opposite guide 2, are generally similar in construction to the rollers mounted upon the side rail 3, except that means are provided for use in connection with the brackets on the side rail 3 to permit retraction of said rollers from engagementwith the guide, thus allowing the screen to be readily removed from the window frame when occasion requires. As shown clearly in Fig. t, the adjusting screw 13 has a threaded engagement with a tubular stem 18 arranged to slide in a bore or opening 19 formed in the side rail 4 and extending through the inner face of said rail to the inner portion of the recess 5. lar stem is transversely recessed to receive a ring or other suitable grip 20 by which said stem may be drawn outward to pull the bracket inward against the resistance of the spring 16, by which the roller may be retracted or withdrawn from engagement with the adjacent guide 2, as will be readily understood. The screw 13 and stem 18 not only constitute an adjustable means for limiting the outward movement of the roller, but also provides an extensible retracting device which permits such adjusting action.

It will be seen from the foregoing description that the spring-pressed rollers at the The outer end of this tubuopposite sides of the screen travel in contact 1 with the guides 2 and permit ready up and such rollers permit the screen to be loosely mounted, as they maintain a constant pres sure on the guides and are movable to coinpensate for any irregularities in the surfaces variations in the width of the frame occurring from contraction and expansion as the result of climatic changes. he screen may be readily applied in position without removing the guides by inserting it with the retractable set of rollers retracted in an obvious manner, and may be as conveniently removed when occasion requires by withdrawing said retractable rollers from engagement with the adjacent guide. This construction not only secures the foregoing adle termination of the guides at any particular point to permit removal of the screen is not necessary.

Hrving thus fully described the invention, what is claimed as new is 1. A screen provided with a reee. a bracket pivotally mounted at its lower end within the recess and provided at its upper end with a roller, a doubled-leaf spring for forcing the bra :ket outward, said spring being carried by the bracket and having one of its arms bearing against a wall of the recess, and means for adjustably limiting such outward movement of the bracket.

2.11 screen provided with a recess, a

l 'acket pivotally mounted at its lower end within the recess and provided at its upper end with roller, a doubled-leaf spring for forcing the bracket outward, said spring being carried by the bracket and having one of its arms bearing against a wall of the recess, and an adjusting screw engaging the upper end of the bracket for limiting the outward movement thereof.

3. A screen provided with a recess, a bracket pivotally mounted at its lower end within the recess and provided at its upper end with a roller, means connected with the upper end of the bracket for limiting the out-ward movement thereof, and a leaf spring having front and rear arms respec tively bearing against a wall of the recess and the bracket to force the latter outward.

1-. A screen provided with a recess, a. bracket pivotally mounted at its lower end within the recess and provided at its upper end with a bearing roller, a spring for 'nally pressing the bracket outward to force t ie roller against the window frame, u member slidably mounted in the screen frame and connected with the upper end ol the b 'acket whereby the latter may be retracted against the pressure of the spring, down ad ustment of the screen, and that recess, a bracket pivotally mounted at its lower end within the recess and provided at its upper thereof, as well as to compensate for any against said cross-piece and the rear wall of i the rece and means adjustably connecting the bracket with the screen frame to limit vantages, but also permits the guides to extend the tall length of the window frame for ad ustment of the screen to any positlon, as j therein and provided at its upper end with the outward movement of said bracket.

6. a screen provided with a recess, a bracket pivotally mounted at its lower end CIT 911,318 I i V 3 a roller, said bracket having a rear wall and of the recess and said cross piece of the 10 a cross piece arranged in advance of said bracket to force said bracket outward.

wall, means connected with the upper end In testimony whereof I affix my signature of the brackedt f0? llilmitiiig its outward in presence of two witnesses.

movement, an a -s ape s rin havin 1 its bight portion engaged with the lowe i" ALLEN HOWARD end of said rear wall and its arms arranged Witnesses: respectively in front and rear of said rear HENRY N. DEAVITT, wall and respectively engaging the rear wall NETTIE DEAVITT. 

